Nitrile (Buna) O-Rings

Nitrile O-rings, also referred to as Buna O-rings, are one of the most common type of O-rings used. They offer good physical properties and temperature range.
Buna O Rings have excellent resistance to oils, greases, fuels, solvents (with the exception to polar solvents) and they are relatively cost effective compared to other types of O-rings. These O Rings can be used in temperatures from -40°F [-40°C] to +212°F [+100°C]. They come in a range of hardness’s from 30 to 90 shore type A. Most common being 70 and 90 shore type A. Other common names for Nitrile are Buna, Buna-N, and NBR.

Because Nitrile O Rings have good physical properties; temperature range; and good resistance fuel, oil, and greases, they are used in many industries from automotive to plumbing to consumer goods. Buna O-rings are used to seal parts throughout automotive engines, power steering, fuel systems and electrical connectors. These seals are used throughout a home in faucets, shower heads, toilet valves, and outdoor electrical fixtures and lighting. They are a used in consumer goods such as water resistance housing, flashlights, SCUBA regulators, watches.

Satori Seal supplies Nitrile seals to the water and chemical filtration industry. These Nitrile O-rings have been used in numerous water filtration systems throughout the
world. Nitrile O-rings provide a tough and durable seal and can operate in cold to warm climates.

Satori Seal supplies large quantities of Nitrile O-rings for many industries and applications. With over 48 years of experience in providing both standard and custom Nitrile
O-rings, Satori Seal can provide you with the best solution for your business. Contact our engineering or sales team for answers to your Nitrile O-ring questions.

There are many factors to consider when designing a Buna N O-ring for your application — dimensions, temperature range, fluid contact, dynamic or static seal to name a
few. From there you can specify other criteria or work with one of our sales team to help select the ideal O-ring.